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CVE-2021-21362

Bypassing readOnly policy by creating a temporary 'mc share upload' URL

Published: Mar 8, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-285
7.7HIGH
NVD MITRE
EPSS Score
1.3%
Top 31.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

MinIO is an open-source high performance object storage service and it is API compatible with Amazon S3 cloud storage service. In MinIO before version RELEASE.2021-03-04T00-53-13Z it is possible to bypass a readOnly policy by creating a temporary 'mc share upload' URL. Everyone is impacted who uses MinIO multi-users. This is fixed in version RELEASE.2021-03-04T00-53-13Z. As a workaround, one can disable uploads with `Content-Type: multipart/form-data` as mentioned in the S3 API RESTObjectPOST docs by using a proxy in front of MinIO.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-285CWE-863

Affected Products

MinIO Inc
commercial·USaka minio, minio operator
MinIOOn-prem
Cloud & SaaS / cloud-platform
IBM Corp.
commercial·USaka ibm corporation, ibm
IBM Spectrum Protect PlusOn-prem
Databases / db-tooling
and 1 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
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References

https://github.com/minio/minio/security/advisories/GHSA-hq5j-6r98-9m8v
github.com
https://github.com/minio/minio/pull/11682
github.com
https://github.com/minio/minio/commit/039f59b552319fcc2f83631bb421a7d4b82bc482
github.com
and 5 more references View all →

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